CN103813955B - The bottom section of body of vehicle - Google Patents
The bottom section of body of vehicle Download PDFInfo
- Publication number
- CN103813955B CN103813955B CN201280045219.2A CN201280045219A CN103813955B CN 103813955 B CN103813955 B CN 103813955B CN 201280045219 A CN201280045219 A CN 201280045219A CN 103813955 B CN103813955 B CN 103813955B
- Authority
- CN
- China
- Prior art keywords
- teat
- trailing arm
- rake
- mentioned
- suspension trailing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000725 suspension Substances 0.000 claims abstract description 98
- 238000009434 installation Methods 0.000 claims abstract description 63
- 239000002828 fuel tank Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000269799 Perca fluviatilis Species 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2027—Floors or bottom sub-units in connection with other superstructure subunits the subunits being rear structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
- B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
- B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
- B60G3/202—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid having one longitudinal arm and two parallel transversal arms, e.g. dual-link type strut suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
- B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
- B60G3/22—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid a rigid arm forming the axle housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/02—Attaching arms to sprung part of vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/063—Arrangement of tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/087—Luggage compartments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/10—Independent suspensions
- B60G2200/18—Multilink suspensions, e.g. elastokinematic arrangements
- B60G2200/182—Multilink suspensions, e.g. elastokinematic arrangements with one longitudinal arm or rod and lateral rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/14—Mounting of suspension arms
- B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/43—Fittings, brackets or knuckles
- B60G2204/4302—Fittings, brackets or knuckles for fixing suspension arm on the vehicle body or chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/063—Arrangement of tanks
- B60K2015/0634—Arrangement of tanks the fuel tank is arranged below the vehicle floor
Abstract
A kind of bottom section of body of vehicle, the back rest (11) possesses the first rake (11A) tilted rearwardly and upwardly, be in the rear side of the first rake (11A) and the suspension trailing arm installation portion (11B) of horizontal-extending, the second rake (11C) that the rear side being in suspension trailing arm installation portion (11B) also tilts rearwardly and upwardly, be formed at suspension trailing arm installation portion (11B) leading section of collecting suspension trailing arm (21) at least partially and protrude first teat (41) of shape upward, the second teat (42) protruding shape is downward formed in the front portion of the first rake (11A), first teat (41) and the second teat (42) overlap the to each other configuration on overall width direction.
Description
Technical field
The present invention relates to the bottom section of body of vehicle, specifically, relate to and possess base plate, the lower surface that is engaged in this base plate the pair of right and left floor bearer extended along vehicle body fore-and-aft direction, be engaged in the lower surface of above-mentioned base plate and the bottom section of body of the vehicle of the pair of right and left back rest extended along vehicle body fore-and-aft direction and the trailing wheel suspension with suspension trailing arm at the rear side of this floor bearer.
Background technology
Generally speaking, consider from viewpoints such as road-holding property, require that the suspension trailing arm installation portion suspension trailing arm of trailing wheel suspension (trailingarm) being installed on vehicle body is high rigidity.In the past, as the scheme making this suspension trailing arm installation portion reach high rigidity, adopt and the structure of strengthening part is used to installation portion, increase the structure of the thickness of slab of installation portion or the structure etc. with high-strength parts formation installation portion.But these methods all can hinder lightweight, and can cost increase be caused, therefore from the viewpoint of lightweight or cost, remain the leeway in improvement.
In addition, specifically, for above-mentioned suspension trailing arm installation portion, (a) considers from viewpoints such as road-holding property, requires high rigidity; B () is considered from viewpoints such as road-holding property, require to be positioned at the position higher than core wheel; C (), from the viewpoint of assembling operation, requires as level.
As the method for realizing above-mentioned (b), (c), actv. way arranges horizontal component at the upper turn of bilge (kick-uppart) of the back rest (rearframe).But, the rake of relatively steep angle now can be formed on the above-mentioned back rest.Further, when head-on crash, collision load easily concentrates on this rake, therefore requires to improve the rigidity near this rake, transmits swimmingly to make collision load.
In addition, Patent Document 1 discloses following structure: arrange and link the rear skewed upper turn of bilge upwards of lower-edge beam (sidesill) rear portion and back rest front portion with front-low-rear-high shape, on this, turn of bilge arranges the installation portion of the suspension trailing arm installing trailing wheel suspension.But in the structure in the past disclosed in this patent documentation 1, because the peristome that passes through for connecting end before suspension trailing arm turn of bilge on above-mentioned forms larger opening, although therefore pts wt increases, rigidity is low, there is weight-saving leeway.
Patent documentation 1: No. 2007-290665, Japanese Laid-Open Patent Publication
Summary of the invention
Therefore, the object of the present invention is to provide a kind of bottom section of body of vehicle, the bottom section of body of this vehicle is not only the structure of light weight, and its can also maintain suspension trailing arm installation portion height, namely guarantee good road-holding property, again can by guarantee and improve to guarantee head-on crash from the first rake to the rigidity of suspension trailing arm installation portion time smoothly load transmit performance.
The bottom section of body of vehicle involved in the present invention comprises base plate, be engaged in this base plate lower surface and along vehicle body fore-and-aft direction extend pair of right and left floor bearer, the rear side of this floor bearer be engaged in above-mentioned base plate lower surface and along vehicle body fore-and-aft direction extend the pair of right and left back rest, and there is the trailing wheel suspension of suspension trailing arm, wherein, the above-mentioned back rest possesses the first rake tilted rearwardly and upwardly, be in the rear side of this first rake and the suspension trailing arm installation portion of horizontal-extending, and the second rake that the rear side being in this suspension trailing arm installation portion also tilts rearwardly and upwardly, be formed at above-mentioned suspension trailing arm installation portion the leading section of accommodating above-mentioned suspension trailing arm at least partially and protrude the first teat of shape upward, the second teat protruding shape is downward formed in the front portion of above-mentioned first rake, above-mentioned first teat and above-mentioned second teat overlap the to each other configuration on overall width direction.
According to the present invention, produce following effect, namely, not only achieve the structure of light weight, but also maintain suspension trailing arm installation portion height, namely guarantee good road-holding property, again by guarantee and improve to ensure that head-on crash from the first rake to the rigidity of suspension trailing arm installation portion time smoothly load transmit performance.
Above-mentioned and other objects, feature and advantage of the present invention become clear and definite from following detailed record and accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the upward view of the bottom section of body representing vehicle of the present invention.
The main portion of Fig. 1 is amplified the upward view represented by Fig. 2.
Fig. 3 is the face upwarding stereogram representing bottom section of body.
Fig. 4 is the lateral plan representing bottom section of body.
Fig. 5 is the view of the main portion of A-A line along Fig. 1.
Fig. 6 is the view of the main portion of B-B line along Fig. 1.
Fig. 7 is at the block diagram having removed the main portion represented under the state on rear floor and back floor side part.
Fig. 8 is the view of the main portion of C-C line along Fig. 7.
Fig. 9 is the view of the main portion of D-D line along Fig. 7.
Figure 10 is the birds-eye view of the first teat forming section.
Figure 11 is the block diagram only representing separator
Detailed description of the invention
In one embodiment of the present invention, " be not only the structure of light weight, but also the height of suspension trailing arm installation portion can be maintained, namely good road-holding property is guaranteed, again can by guarantee and improve to guarantee head-on crash from the first rake to the rigidity of suspension trailing arm installation portion time smoothly load transmit performance " object, realize by adopting following structure, that is: a kind of bottom section of body of vehicle, comprise base plate, be engaged in this base plate lower surface and along vehicle body fore-and-aft direction extend pair of right and left floor bearer, engage and the pair of right and left back rest extended along vehicle body fore-and-aft direction with the lower surface of above-mentioned base plate at the rear side of this floor bearer, and there is the trailing wheel suspension of suspension trailing arm, wherein, the above-mentioned back rest possesses the first rake tilted rearwardly and upwardly, be in the rear side of this first rake and the suspension trailing arm installation portion of horizontal-extending, and the second rake that the rear side being in this suspension trailing arm installation portion also tilts rearwardly and upwardly, be formed at above-mentioned suspension trailing arm installation portion the leading section of accommodating above-mentioned suspension trailing arm at least partially and protrude the first teat of shape upward, the second teat protruding shape is downward formed in the front portion of above-mentioned first rake, above-mentioned first teat and above-mentioned second teat overlap the to each other configuration on overall width direction.
Below, based on accompanying drawing in detail one embodiment of the present invention is described in detail.
But the present invention is not limited to the structure of following embodiment.
In figure, arrow F represents vehicle front, and arrow R represents rear view of vehicle, and arrow IN represents that, inside overall width direction, arrow OUT represents outside overall width direction.
Accompanying drawing illustrates the bottom section of body of vehicle.Fig. 1 is the upward view representing bottom section of body, and the main portion of Fig. 1 is amplified the upward view represented by Fig. 2, and Fig. 3 is the block diagram of Fig. 2, namely represents the block diagram during bottom section of body seen from bottom surface, and Fig. 4 is the lateral plan representing bottom section of body.
In Fig. 1, Fig. 4, be provided with the base plate 1 of the bottom surface forming compartment, at the rear portion of this base plate 1, arrange continuously via No.3 crossbeam 2 (floor beam) and be formed with rear floor 3.Herein, rear floor 3 is arranged on the position higher than base plate 1.
In the overall width direction substantially central portion of above-mentioned base plate 1, to be integrally formed in oriented compartment tunnel part 4 that is outstanding and that extend along the fore-and-aft direction of vehicle.
In the bottom of this tunnel part 4, be provided with the tunnel component 5 that section is cap shaped.The each tunnel component 5 of pair of right and left extends along the fore-and-aft direction of vehicle.By described each tunnel component 5, the rigidity realizing tunnel part 4 and base plate 1 improves.
In addition, in the left and right sides portion of above-mentioned base plate 1, the lower-edge beam (sidesill) 6 being fixed with the fore-and-aft direction along vehicle and extending is engaged.This lower-edge beam 6 is that lower-edge beam internals 7 are fixed together with lower-edge beam outer member 8 is engaged, and has the bus body strength parts of the lower-edge beam closed sectional that the fore-and-aft direction along vehicle extends.Sidepiece vehicle body rigidity is guaranteed by this lower-edge beam 6.
In addition, between above-mentioned tunnel component 5 and lower-edge beam 6, the lower surface engaging and be fixed on base plate 1 is provided with and the pair of right and left floor bearer 9,9 extended along vehicle body fore-and-aft direction.This floor bearer 9 forms section cap shaped, between this floor bearer 9 and lower surface of base plate 1, is formed with the closed sectional extended along vehicle body fore-and-aft direction, thus guarantees floor rigidity, lower body rigidity.
As shown in Figure 4, at the rearward end upper surface of above-mentioned base plate 1, be provided with above-mentioned No.3 crossbeam 2.
This No.3 crossbeam 2 has part 2U and crossbeam lower part 2L on crossbeam, and possess the bus body strength parts of the crossbeam closed sectional 10 extended along overall width direction.On crossbeam, part 2U and crossbeam lower part 2L possesses front side faying flange, the upper turn of bilge extended along the vertical direction and rear side faying flange respectively.
Above-mentioned base plate 1 as shown in Figure 4, is fixedly linked on the front side faying flange junction surface lower surface each other of part 2U and crossbeam lower part 2L on crossbeam.The leading section on rear floor 3 be sandwich-like be clamped and fastened between the rear side faying flange of part 2U on crossbeam and the rear side faying flange of crossbeam lower part 2L.
As Figure 1 and Figure 4, be provided with the lower surface being engaged in rear floor 3 and along vehicle body fore-and-aft direction extend the floor side member as the pair of right and left back rest (rearsideframe) 11.
This floor side member 11 is bus body strength parts that the lower surface dual-side on rear floor 3 extends through the inner side of wheel cover 12 and along vehicle body fore-and-aft direction.As shown in Figure 1, the forward side 11a of this floor side member 11 is engaged in lower-edge beam internals 7, and the leading section 11b of floor side member 11 is engaged in the rear side of floor bearer 9.
In addition, as shown in the upward view of Fig. 1, the floor bearer 9 of base plate 1 lower surface is arranged in the fore-and-aft direction continuous print mode along vehicle with the floor side member 11 of rear floor 3 lower surface.
Fig. 5 is the view (lateral plan) of the main portion of A-A line along Fig. 1, and Fig. 6 is the view (front elevation) of the main portion of B-B line along Fig. 1.As shown in Figure 6, in the both sides (but the right side of vehicle is only shown in figure 6) on rear floor 3, back floor side part (with part synonym on floor side member) 13 is to be set up in above-below direction and floor side member 11 mode in opposite directions.
This back floor side part 13 is along the parts that vehicle body fore-and-aft direction extends in the same manner as floor side member 11, as shown in Figure 5, Figure 6, is formed with the closed sectional 14 extended along vehicle body fore-and-aft direction, thus guarantees underbody structure between back floor side part 13 and floor side member 11.
In addition, as shown in Figure 6, the outer end, overall width direction on rear floor 3 be sandwich-like be sandwiched between back floor side part 13 and floor side member 11.
In addition, as shown in Figure 4, Figure 5, at the fore-and-aft direction pars intermedia of rear floor 3 and back floor side part 13, the No.4 crossbeam (after cross member) 15 extended along overall width direction is provided with.
This No.4 crossbeam 15 possesses the crossbeam lower part 15L on the crossbeam shown in Fig. 4, Fig. 5 shown in part 15U and Fig. 1, Fig. 2, Fig. 3.As shown in Figure 4, Figure 5, on crossbeam, part 15U joint is fixed on rear floor 3 upper surface and back floor side part 13 upper surface.On this crossbeam between part 15U and each key element 3,13 upper surface, be formed with closed sectional 16.
As shown in Figure 1 to Figure 3, crossbeam lower part 15L engages the lower surface being fixed on rear floor 3, links pair of right and left floor side member 11,11 along overall width direction.Between this crossbeam lower part 15L and rear floor 3 lower surface, be formed with the closed sectional (not shown) extended along overall width direction.
As shown in Figure 4, on the face inside the overall width direction of above-mentioned wheel cover 12, be bonded to a pair, front and back wheel cover reinforcement 17,18, by this pair wheel cover reinforcement 17,18, can prevent wheel cover 12 from inwardly toppling over.The wheel cover reinforcement 17 of front side is seen as L-shaped with front and links wheel cover 12 and part 15U on the crossbeam of No.4 crossbeam 15.The wheel cover reinforcement 18 of rear side is seen as the sidepiece on L-shaped link wheel cover 12 and rear floor 3 with front.
In addition, as shown in Figure 1 to Figure 3, the rear suspension 20 of trailing wheel 19 is provided with.
Above-mentioned rear suspension 20 possesses suspension trailing arm 21, the lower arm 22 of front side, the lower arm 24 doubling as the rear side of the spring perch of axle spring 23 (with reference to Fig. 3), upper arm and sub-frame 25, and left and right is formed roughly symmetrically.
Above-mentioned sub-frame 25 possesses the crossbeam portion 26 of front side, the crossbeam portion 27 of rear side and pair of right and left curb girder portion 28,28.The both ends, left and right in crossbeam portion 26, front side are fixedly linked on the front portion in a pair curb girder portion 28,28.Branch before and after the both ends, left and right in rear-side cross member portion 27, and the pars intermedia and the rear portion that are fixedly linked on a pair curb girder portion 28.Truss structure (trussstructure) is formed by curb girder portion 28 and the front and back branch in rear-side cross member portion 27.
In addition, the rear side vehicle body installation portion 29 in the curb girder portion 28 of left and right is linked to floor side member 11, the front side vehicle body installation portion 30 in the curb girder portion 28 of left and right be linked to No.4 crossbeam 15 at overall width direction ratio floor side member 11 crossbeam lower part 15L more in the inner part.When rearward collision load is input to floor side member 11, this rearward collision load is dispersed to this floor side member 11, and the car body component beyond the floor side member 11 being dispersed to crossbeam lower part 15L etc. via curb girder portion 28.
Above-mentioned suspension trailing arm 21 as shown in Figure 3, is arranged between body side installation portion (horizontal part 11B described later) and the wheel strut member 31 of trailing wheel 19 side.Front side lower arm 22 as shown in Figure 2, between the support 32 being arranged on across and establishing between crossbeam portion, front side 26 and curb girder portion 28 and wheel supporting members 31.The lower arm 24 of rear side is arranged between rear-side cross member portion 27 and wheel supporting members 31.Upper arm be arranged at be arranged on top, curb girder portion 28 in the position that the fore-and-aft direction position with support 32 is identical between not shown support and wheel supporting members 31.By the rear suspension 20 formed in this way, trailing wheel 19,19 independent suspension of left and right can be made.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 6, in the below on rear floor 3, in the spatial portion of side lower part by vehicle that the floor side member 11,11 by the crossbeam lower part 2L of No.3 crossbeam 2, the crossbeam lower part 15L of No.4 crossbeam 15 and left and right surrounds, be provided with Fuel Tank 33.
This Fuel Tank 33 utilizes pair of right and left cassette tape 34,34 to be supported on body side.
In present embodiment, the front portion of above-mentioned each cassette tape 34,34 utilizes installing component 35 fastening support in the crossbeam lower part 2L of No.3 crossbeam 2, and the rear portion of above-mentioned each cassette tape 34,34 utilizes installing component 36 fastening support in the crossbeam lower part 15L of No.4 crossbeam 15.
As shown in the lateral plan of Fig. 4, Fig. 5, above-mentioned floor side member 11 possesses the first rake 11A tilted rearwardly and upwardly in its front portion, be in the rear side of this first rake 11A and rearward horizontal-extending the horizontal part 11B as suspension trailing arm installation portion and be in the rear side of this horizontal part 11B and the second rake 11C tilted rearwardly and upwardly.
In addition, herein, so-called level, comprises the situation of complete level and the situation close to level.So-called close to level, refer to relative to the scope of horizon within 5 °.
, compare the first rake 11A and the second rake 11C of floor side member 11 herein, the second rake 11C is set as its inclination and delays in the first rake 11A.In other words, the first rake 11A is formed with the angled manner of comparable steepness, and the second rake 11C is with angled manner formation relatively slowly.
Fig. 7 observes from oblique upper the block diagram represented the state of having removed rear floor 3 and back floor side part 13 rear bottom section, Fig. 8 is the view (lateral plan) of the main portion of C-C line along Fig. 7, Fig. 9 is the view (back view) of the main portion of D-D line along Fig. 7, and Figure 10 is the main portion birds-eye view of Fig. 7.
As shown in Fig. 6, Fig. 7, Fig. 8, Figure 10, at the horizontal part 11B as suspension trailing arm installation portion, the leading section of collecting suspension trailing arm 21 at least partially and the first teat 41 protruding shape be upward integrally formed with floor side member 11.
As shown in Figure 6, the section shape in overall width direction is roughly cap shaped to this first teat 41, and as shown in Figure 8, side-looking forms roughly semi-circular shape, in this first teat 41, receive the base end part of suspension trailing arm 21 and a part for leading section.
In addition, as shown in Fig. 2, Fig. 7, Fig. 9, inside the overall width direction of the front portion of above-mentioned first rake 11A, the second teat 42 protruding shape is downward formed with.This second teat 42 forms section cap shaped accordingly with the shape of the rearward end of floor bearer 9, and utilizes the open rearward end portion of this second teat 42 mulched ground plate-girder 9 from below.
Above-mentioned first teat 41 and the second teat 42 are all integrally formed with floor side member 11.As shown in Fig. 2, Fig. 7, Fig. 9, the first teat 41 and the second teat 42 overlap the to each other configuration on overall width direction.By described both 41,42 overlay structure, the rigidity from the first rake 11A to horizontal part 11B can be improved, realize the transmission of load smoothly during head-on crash, frontal collision load is passed to the second teat 42, first rake 11A, horizontal part 11B, the second rake 11C swimmingly from floor bearer 9.
As the front elevation of the lateral plan of Fig. 5, Fig. 6, Fig. 9 back view respectively shown in, inside the overall width direction of the horizontal part 11B of floor side member 11, be provided with the wall portion 43 erect downward.
In the present embodiment, floor side member 11 is formed as section roughly cap shaped.As shown in Fig. 6, Fig. 9, on the longitudinal wall 11d inside the overall width direction that above-mentioned wall portion 43 is weldingly fixed on horizontal part 11B.
In addition, as shown in Figure 5, the lower edge 43a of wall portion 43 is formed in the side mode linearly of the side and the second rake 11C that make itself and the second teat 42.Thus, the rigidity from the first rake 11A to horizontal part 11B can be guaranteed.
Namely, because impact load during head-on crash easily concentrates on the first rake 11A forming comparable steepness and tilt, the essentiality improving the rigidity at this position is high, therefore by utilizing the lower edge 43a of above-mentioned wall portion 43 to make itself and the second teat 42 side and the second rake 11C side linearly, thus intensity, the rigidity from the first rake 11A to horizontal part 11B is improved.
In addition, herein, so-called straight line, not only comprises situation completely in alignment, as long as in the scope of the effect of the harmless above-mentioned intensity of raising from the first rake 11A to horizontal part 11B, rigidity, also can locally comprise curve or curve.
As shown in Figure 6, above-mentioned Fuel Tank 33 rear floor 3 below and near above-mentioned wall portion 43 and arranging.As shown in Fig. 6, Fig. 9, at the lower edge 43a of this wall portion 43, the outside towards overall width direction has been bent to form flange 43b integratedly.By this structure, the shape of Fuel Tank 33 when being not only formed in the side collision of vehicle, can not be damaged, and realize himself rigidity of wall portion 43 and improve, and realize the further raising of rigidity from the first rake 11A to horizontal part 11B.
In addition, as shown in the upward view of Fig. 2, the medial surface of the medial surface of floor bearer 9, the second teat 42, wall portion 43 and floor side member 11 extends continuously along the longitudinal direction without jump, thus, realizes load transmission smoothly.
On the other hand, as shown in Fig. 6, Fig. 8, the packing ring 21B of suspension trailing arm 21 leading section is supported on the support 37 of the horizontal part 11B lower surface being bolted to floor side member 11, being housed at least partially in the first teat 41 of the leading section of this suspension trailing arm 21.
As shown in Fig. 6, Fig. 8, in the closed sectional 14 formed by back floor side part 13 and the floor side member 11 as base plate, be provided with separator (bulkhead) 50.
Shown in the block diagram that this separator 50 is as single in separator in the birds-eye view of Figure 10 and Figure 11, possess and separate the front side of above-mentioned closed sectional 14 and separating part 50a, 50b of rear side in the direction from front to rear of a vehicle body; Be arranged on the lower end of separating part 50a, 50b before and after these and the junction surface 50c engaged with floor side member 11; With the mode single peristome 50d of opening formation in this junction surface 50c and the bottom of each separating part 50a, 50b continuously making above-mentioned first teat 41 give prominence to upward from this junction surface 50c; And for this separator 50 being engaged multiple engages male edge 50e, 50f, 50g, 50h, 50j of being fixed on the corresponding portion of back floor side part 13 or floor side member 11.
Above-mentioned each key element 50a ~ 50c, 50e ~ 50j is integrally formed.Above-mentioned junction surface 50c is arranged at position overlapping with the first teat 41 in the longitudinal direction.
As shown in the birds-eye view in Figure 10, nutplate 51 is made to coincide with the junction surface 50c upper surface of separator 50.Junction surface 50c is adding up under three states overlapped with floor side member 11 and nutplate 51, engaged fixing in Fig. 10 with the spot welding position 52 of symbol × shown ... 52.
In Fig. 10, symbol 53 is the bolted portions being fastened and fixed support 37.The junction surface 50c of separator 50 engages in the mode comprising this bolted portion 53 and is fixed on floor side member 11.That is, separator 50 can as far as possible near the bolted portion 53 of the packing ring 21B of suspension trailing arm 21.Thus, rigidity improves, and the load can accepted more reliably from suspension trailing arm 21 inputs.
In addition, as shown in Figure 4, the position higher than core wheel 54 is set at as the horizontal part 11B of suspension trailing arm installation portion.Thus, the structure guaranteeing road-holding property is formed.
In addition, in Fig. 4, Fig. 7, symbol 55 is center pillar (centerpillar).This center pillar 55 as shown in Figure 7, is made up of center pillar internals 56, center pillar outer member 57 and B-pillar reinforcement 58.In addition, in Fig. 6, Fig. 9, symbol 59 is lower-edge beam outer member reinforcement, and symbol 60 is rear pillar reinforcing member.
So, the bottom section of body of the vehicle of above-mentioned embodiment comprises base plate 1, be engaged in above-mentioned base plate 1 lower surface and along vehicle body fore-and-aft direction extend pair of right and left floor bearer 9, 9, at this floor bearer 9, the rear side of 9 is engaged in the lower surface of rear floor 3 (base plate) and the pair of right and left floor side member 11 extended along vehicle body fore-and-aft direction, 11 (back rest), and there is the rear suspension 20 (trailing wheel 19 suspension) of suspension trailing arm 21, wherein, above-mentioned floor side member 11 possesses the first rake 11A tilted rearwardly and upwardly in its front portion, be in the rear side of this first rake 11A and the horizontal part 11B of horizontal-extending (suspension trailing arm installation portion), and the second rake 11C that the rear side being in this horizontal part 11B (suspension trailing arm installation portion) also tilts rearwardly and upwardly, be formed at above-mentioned horizontal part 11B (suspension trailing arm installation portion) leading section of accommodating above-mentioned suspension trailing arm 21 at least partially and protrude the first teat 41 of shape upward, the second teat 42 protruding shape is downward formed in the front portion of above-mentioned first rake 11A, above-mentioned first teat 41 and above-mentioned second teat 42 overlap the to each other configuration (with reference to Fig. 2 on overall width direction, Fig. 4, Fig. 5).
According to this structure, owing to possessing the horizontal part 11B (suspension trailing arm installation portion) of horizontal-extending at the rear side of the first rake 11A, be formed at this horizontal part 11B (suspension trailing arm installation portion) leading section of collecting suspension trailing arm 21 at least partially and protrude the first teat 41 of shape upward, therefore, it is possible to maintain the height of horizontal part 11B (suspension trailing arm installation portion), thereby, it is possible to guarantee road-holding property.
In addition, owing to making the first teat 41 overlapping on overall width direction with the second teat 42, therefore, it is possible to improve the rigidity of from the first rake 11A to horizontal part 11B (suspension trailing arm installation portion), realize the transmission of load smoothly during head-on crash, frontal collision load can be passed to the second teat 42, first rake 11A, horizontal part 11B (suspension trailing arm installation portion), the second rake 11C swimmingly from floor bearer 9.
Generally speaking, the structure of light weight can not only be realized, but also the height of horizontal part 11B (suspension trailing arm installation portion) can be maintained, namely guarantee good road-holding property, the load smoothly when can guarantee head-on crash by guaranteeing and improve the rigidity of from the first rake 11A to horizontal part 11B (suspension trailing arm installation portion) again transmits performance.
In addition, inside the overall width direction of above-mentioned horizontal part 11B (suspension trailing arm installation portion), be provided with the wall portion 43 erect downward, the lower edge 43a of this wall portion 43 is formed (with reference to Fig. 5, Fig. 6) in the side mode linearly of the side and above-mentioned second rake 11C that make itself and above-mentioned second teat 42.
According to this structure, the side of the side of itself and the second teat 42 and the second rake 11C is made linearly, therefore, it is possible to improve the rigidity of from the first rake 11A to horizontal part 11B (suspension trailing arm installation portion) further owing to utilizing the lower edge 43a of wall portion 43.
In addition, in the below of above-mentioned rear floor 3 (base plate), above-mentioned wall portion 43 is provided with Fuel Tank 33, is formed towards the flange 43b (with reference to Fig. 6) outside overall width direction at the lower edge 43a of above-mentioned wall portion 43.
According to this structure, owing to being formed towards the flange 43b outside overall width direction at the lower edge 43a of above-mentioned wall portion 43, the shape of Fuel Tank 33 can not be damaged when therefore can be formed in the side collision of vehicle, and, the rigidity of wall portion 43 can not only be improved further, and the rigidity of from the first rake 11A to horizontal part 11B (suspension trailing arm installation portion) can be improved further.
In addition, above-mentioned second teat 42 formed for 2 (with reference to Fig. 2, Fig. 5) in the mode in the open rearward end portion covering above-mentioned floor bearer 9 from below.
According to this structure, because the open rearward end portion of floor bearer 9 is covered from below by the second teat 42, therefore, it is possible to the intrusion of the foreign matter such as anti-sealing or mud.In addition, according to this structure, continuous towards the section of the second teat 42 front portion from the rearward end of floor bearer 9, thus, load transmission becomes better, can realize the further raising of the tolerance to collision.
In addition, in the closed sectional 14 formed by above-mentioned back floor side part 13 (base plate) and above-mentioned floor side member 11 (back rest), separator 50 is provided with.This separator 50 possesses the junction surface 50c that separating part 50a, 50b of separating above-mentioned closed sectional 14 in the direction from front to rear of a vehicle body and the lower end being arranged on this separating part 50a, 50b engage with floor side member 11 (back rest), and above-mentioned junction surface 50c is arranged at position (with reference to Fig. 6, Fig. 8) overlapping with above-mentioned first teat 41 in the longitudinal direction.
According to this structure, owing to arranging the separator 50 possessing separating part 50a, 50b and junction surface 50c, make junction surface 50c overlapping with the first teat 41 in the longitudinal direction, therefore, it is possible to the rigidity realizing being formed with the horizontal part 11B (suspension trailing arm installation portion) of the first teat 41 improves, the rigidity of from the first rake 11A to horizontal part 11B (suspension trailing arm installation portion) thus can be improved further.
In addition, in the above-described embodiment, be provided with a pair, front and back above-mentioned separating part 50a, 50b, but also can be only one of them.
If structure of the present invention is carried out corresponding with above-mentioned embodiment, base plate of the present invention comprises the base plate 1 of embodiment, rear floor 3 and back floor side part 13, and below equally, the back rest corresponds to floor side member 11, trailing wheel suspension corresponds to rear suspension 20, and suspension trailing arm installation portion corresponds to horizontal part 11B.
The present invention described above is summarized as follows.
Namely, the bottom section of body of vehicle involved in the present invention comprises base plate, be engaged in this base plate lower surface and along vehicle body fore-and-aft direction extend pair of right and left floor bearer, the rear side of this floor bearer be engaged in above-mentioned base plate lower surface and along vehicle body fore-and-aft direction extend the pair of right and left back rest, and there is the trailing wheel suspension of suspension trailing arm, wherein, the above-mentioned back rest possesses the first rake tilted rearwardly and upwardly, be in the rear side of this first rake and the suspension trailing arm installation portion of horizontal-extending, and the second rake that the rear side being in this suspension trailing arm installation portion also tilts rearwardly and upwardly, be formed at above-mentioned suspension trailing arm installation portion the leading section of accommodating above-mentioned suspension trailing arm at least partially and protrude the first teat of shape upward, the second teat protruding shape is downward formed in the front portion of above-mentioned first rake, above-mentioned first teat and above-mentioned second teat overlap the to each other configuration on overall width direction.
According to said structure, owing to possessing the suspension trailing arm installation portion of the rear side horizontal-extending at the first rake, and be formed at this suspension trailing arm installation portion the leading section of collecting suspension trailing arm at least partially and protrude the first teat of shape upward, therefore, it is possible to maintain the height of suspension trailing arm installation portion, thereby, it is possible to guarantee road-holding property.
In addition, owing to making the first teat overlapping on overall width direction with the second teat, therefore, it is possible to improve from the first rake to the rigidity of suspension trailing arm installation portion, the transmission of load smoothly during head-on crash can be realized, frontal collision load can be passed to the second teat, the first rake, suspension trailing arm installation portion, the second rake swimmingly from floor bearer.
Generally speaking, the structure of light weight can not only be realized, but also the height (namely guaranteeing good road-holding property) of suspension trailing arm installation portion can be maintained, again can by guarantee and the load smoothly improved when to guarantee head-on crash from the first rake to the rigidity of suspension trailing arm installation portion transmits performance.
In one embodiment of the present invention, inside the overall width direction of above-mentioned suspension trailing arm installation portion, be provided with the wall portion erect downward, the lower edge of this wall portion is formed in the side mode linearly of the side and above-mentioned second rake that make itself and above-mentioned second teat.
According to said structure, make the side of the side of itself and the second teat and the second rake linearly, therefore, it is possible to improve from the first rake to the rigidity of suspension trailing arm installation portion further owing to utilizing the lower edge of wall portion.
In one embodiment of the present invention, in the below of above-mentioned base plate, above-mentioned wall portion is provided with Fuel Tank, is formed towards the flange outside overall width direction in the lower edge of above-mentioned wall portion.
According to said structure, owing to being formed towards the flange outside overall width direction in the lower edge of above-mentioned wall portion, the shape of Fuel Tank can not be damaged when therefore can be formed in the side collision of vehicle, and the rigidity of wall portion can not only be improved further, and the rigidity from the first rake to suspension trailing arm installation portion can be improved further.
In one embodiment of the present invention, above-mentioned second teat is formed in the mode in the open rearward end portion covering above-mentioned floor bearer from below.
According to said structure, because the open rearward end portion of floor bearer is covered from below by the second teat, therefore, it is possible to the intrusion of the foreign matter such as anti-sealing or mud, and, continuous towards the section of the second teat front portion from the rearward end of floor bearer, thus, load transmission becomes better, can realize the further raising of the tolerance to collision.
In one embodiment of the present invention, separator is provided with in the closed sectional formed by above-mentioned base plate and the above-mentioned back rest, this separator possesses the junction surface of separating the above-mentioned separating part closing section and the lower end being arranged on this separating part in the direction from front to rear of a vehicle body and engaging with the back rest, and above-mentioned junction surface is arranged at position overlapping with above-mentioned first teat in the longitudinal direction.
According to said structure, owing to arranging the separator possessing separating part and junction surface, make junction surface overlapping with the first teat in the longitudinal direction, therefore, it is possible to the rigidity realizing being formed with the suspension trailing arm installation portion of the first teat improves, thus, the rigidity from the first rake to suspension trailing arm installation portion can be improved further.
The Japanese patent application laid please proposed by December 20th, 2011 in this is willing to based on 2011-277784, and its content comprises in this application.
For statement the present invention, above by reference to the accompanying drawings and by embodiment to invention has been suitably and illustrating fully, but will be appreciated that, as long as those skilled in the art just can relatively easily change and/or improve above-mentioned embodiment.Thus, should be interpreted as, as long as the change form that those skilled in the art implement or improvement form do not depart from the interest field of the claim recorded in claims, this type of changes form or improvement form is just still included in the interest field of the claim described in claims.
Utilizability in industry
As previously discussed, the present invention for possessing base plate, be engaged in the lower surface of this base plate and the pair of right and left floor bearer extended along vehicle body fore-and-aft direction, be engaged in the lower surface of above-mentioned base plate and the bottom section of body of the vehicle of the pair of right and left back rest extended along vehicle body fore-and-aft direction and the trailing wheel suspension with suspension trailing arm is useful at the rear side of this floor bearer.
Claims (7)
1. a bottom section of body for vehicle, is characterized in that comprising:
Base plate;
Pair of right and left floor bearer, is engaged in the lower surface of described base plate and extends along vehicle body fore-and-aft direction;
The pair of right and left back rest, is engaged in the lower surface of described base plate at the rear side of described floor bearer and extends along vehicle body fore-and-aft direction; And
Trailing wheel suspension, has suspension trailing arm, wherein,
The described back rest possesses: the first rake tilted rearwardly and upwardly, be in the rear side of described first rake and the suspension trailing arm installation portion of horizontal-extending and be in the rear side of described suspension trailing arm installation portion and the second rake of tilting rearwardly and upwardly,
Be formed at described suspension trailing arm installation portion the leading section of accommodating described suspension trailing arm at least partially and protrude the first teat of shape upward,
The second teat protruding shape is downward formed in the front portion of described first rake,
Described first teat and described second teat overlap the to each other configuration on overall width direction.
2. the bottom section of body of vehicle according to claim 1, is characterized in that:
Inside the overall width direction of described suspension trailing arm installation portion, be provided with the wall portion erect downward,
The lower edge of described wall portion is formed in the side mode linearly of the side and described second rake that make itself and described second teat.
3. the bottom section of body of vehicle according to claim 2, is characterized in that:
In the below of described base plate, described wall portion is provided with Fuel Tank,
In the lower edge of described wall portion, be formed towards the flange outside overall width direction.
4. the bottom section of body of vehicle according to claim 3, is characterized in that:
Described second teat is formed to cover the mode in the open rearward end portion of described floor bearer from below.
5. the bottom section of body of vehicle according to claim 2, is characterized in that:
Described second teat is formed to cover the mode in the open rearward end portion of described floor bearer from below.
6. the bottom section of body of vehicle according to claim 1, is characterized in that:
Described second teat is formed to cover the mode in the open rearward end portion of described floor bearer from below.
7. the bottom section of body of vehicle according to any one of claim 1 to 6, is characterized in that:
Separator is provided with in the closed sectional formed by described base plate and the described back rest,
Described separator possesses: the separating part separating described closed sectional in the direction from front to rear of a vehicle body and the lower end being arranged on described separating part and the junction surface engaged with the described back rest,
Described junction surface is arranged at position overlapping with described first teat in the longitudinal direction.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-277784 | 2011-12-20 | ||
| JP2011277784A JP5853666B2 (en) | 2011-12-20 | 2011-12-20 | Lower body structure of the vehicle |
| PCT/JP2012/007758 WO2013094133A1 (en) | 2011-12-20 | 2012-12-04 | Vehicle underbody structure for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103813955A CN103813955A (en) | 2014-05-21 |
| CN103813955B true CN103813955B (en) | 2016-04-13 |
Family
ID=48668052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280045219.2A Expired - Fee Related CN103813955B (en) | 2011-12-20 | 2012-12-04 | The bottom section of body of vehicle |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9156504B2 (en) |
| JP (1) | JP5853666B2 (en) |
| CN (1) | CN103813955B (en) |
| DE (1) | DE112012003877T8 (en) |
| WO (1) | WO2013094133A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9604672B2 (en) * | 2014-09-26 | 2017-03-28 | Honda Motor Co., Ltd. | Vehicle body rear structure |
| US9296293B1 (en) | 2014-11-19 | 2016-03-29 | Ford Global Technologies, Llc | Vehicle load management structure |
| JP6540237B2 (en) | 2015-05-29 | 2019-07-10 | スズキ株式会社 | Vehicle side structure |
| FR3041908B1 (en) * | 2015-10-02 | 2017-11-03 | Renault Sas | "REVERSE REAR AXLE ASSEMBLY FOR MOTOR VEHICLE INTEGRATING A RESERVOIR" |
| JP6642402B2 (en) * | 2016-12-09 | 2020-02-05 | トヨタ自動車株式会社 | Vehicle frame structure |
| US10556624B2 (en) * | 2017-06-16 | 2020-02-11 | Ford Global Technologies, Llc | Vehicle underbody component protection assembly |
| JP7047479B2 (en) * | 2018-03-09 | 2022-04-05 | トヨタ自動車株式会社 | Vehicle undercarriage |
| CN110294031B (en) * | 2018-03-23 | 2021-08-03 | 马自达汽车株式会社 | Vehicle body lower surface structure |
| KR102512997B1 (en) * | 2018-12-05 | 2023-03-22 | 현대자동차주식회사 | Vehicle body structure |
| JP7295075B2 (en) | 2020-09-04 | 2023-06-20 | トヨタ自動車株式会社 | Trailing arm mounting structure |
| JP7158519B2 (en) * | 2021-03-04 | 2022-10-21 | 本田技研工業株式会社 | rear body structure |
| KR20230111947A (en) * | 2022-01-19 | 2023-07-26 | 현대자동차주식회사 | Frame structure for pbv |
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- 2012-12-04 DE DE112012003877.0T patent/DE112012003877T8/en not_active Expired - Fee Related
- 2012-12-04 CN CN201280045219.2A patent/CN103813955B/en not_active Expired - Fee Related
- 2012-12-04 US US14/345,924 patent/US9156504B2/en not_active Expired - Fee Related
- 2012-12-04 WO PCT/JP2012/007758 patent/WO2013094133A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| US20150217810A1 (en) | 2015-08-06 |
| DE112012003877T5 (en) | 2014-07-10 |
| WO2013094133A1 (en) | 2013-06-27 |
| JP2013129207A (en) | 2013-07-04 |
| DE112012003877T8 (en) | 2014-12-18 |
| US9156504B2 (en) | 2015-10-13 |
| JP5853666B2 (en) | 2016-02-09 |
| CN103813955A (en) | 2014-05-21 |
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